Home / 1,004,850.40-1,504,942.80-687,589.60

Finding the Fourth Proportional to 1,004,850.40, 1,504,942.80 and 687,589.60

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Solution

The fourth proportional to 1,004,850.40, 1,504,942.80 and 687,589.60 is: 1,029,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,850.40 : 1,504,942.80 = 687,589.60 : x
  2. Step 2: Convert to fraction form
    1,004,850.40/1,504,942.80 = 687,589.60/x
  3. Step 3: Cross multiply
    1,004,850.40x = 1,504,942.80 × 687,589.60
  4. Step 4: Simplify right side
    1,004,850.40x = 1,034,783,017,874.88
  5. Step 5: Solve for x
    x = 1,034,783,017,874.88/1,004,850.40
  6. Step 6: Final answer
    x = 1,029,788.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.